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Overview

Description

YOU AND YOUR BIKE ‑ CONNECTED AS ONE.

All‑New from the ground up, the YZ450F incorporates electric start, exclusive smartphone app power tuner, new engine, new frame, new slim styling and revised settings to the already industry‑best suspension.

All-New Machine for 2018: With an all-new engine, new frame, new bodywork and more, the 2018 YZ450F™ is ready to take the MX open class to a whole new level. So pick your view for 2018: behind the handlebar of YZ450F, or well behind the rear fender.

All-New Power Tuner App: Yamaha breaks new ground with the new Power Tuner app, putting the flexibility and precision tunability of the GYTR® Power Tuner into your smartphone. Make fueling and ignition timing changes instantly and upload them to the bike via the onboard WiFi system for the ultimate in track-side tuning.

Electric Starter System: Utilizing a compact starter motor and ultra-lightweight lithium battery, the YZ450F brings the convenience of push-button starting to the racetrack, for effortless restarts under pressure, and relaxed riding when the clock isn't ticking.

New Engine: An updated cylinder head, piston, cam profiles, cylinder geometry and much more work together to give YZ450F riders the best balance of open-class power with controllability.

New Frame: Yamaha's bilateral beam frame features new main spars, engine mounts and engine mounting position to further centralize mass and provide an ideal balance between cornering feel and straight-line rigidity.

Revised Engine Design: For 2018, the distinct rearward-slanted cylinder design - complete with rear exhaust and forward-mounted intake system - has been completely updated for 2018. The all-new cylinder head is lighter and is now angled more vertically, to work with the updated frame, for optimized front weight distribution. Inside, the engine features a longer, straighter intake tract, more aggressive cam profiles, a new crankshaft, a stronger, higher-compression “box bridge" piston design with DLC-coated piston pin, and more. Together, these updates give the rider an ideal balance of open-class power with exceptional controllability.

New Power Tuner App: Breaking new ground in the industry - again - Yamaha introduces the new Power Tuner app, which brings the power of the GYTR Power Tuner to your iOS® or Android® device. Using WiFi to connect to the bike's onboard CAN-bus network, the app allows owners to adjust air/fuel mixture and ignition timing maps to tune engine performance for track conditions, record race log information, and monitor a range of data such as maintenance and system diagnosis, engine run time, and more.

New Electric Starter System: The 2018 YZ450F now features a compact electric starter system to minimize restart delays on track and add convenience everywhere else. Powered by a high-capacity and ultra-lightweight four-cell lithium-ion battery, the system adds minimal weight.

Launch Control System (LCS): LCS optimizes engine output for quicker, smoother race starts every time, boosting controllability out of the gate and ensuring the rider has the best chance to get the holeshot and lead the competition into the first turn.

Advanced Fuel Injection: The engine breathes through a new 44mm Mikuni® throttle body fed by a high pressure electric pump to ensure optimum fuel atomization and power for a wide range of riding conditions. The more compact throttle body is 12 percent lighter than the previous unit as well.

Larger Radiators: Updated radiators are larger and angled more directly in the incoming air stream, for improved cooling under the most demanding race conditions.

Updated Transmission and Clutch: Revised gears with a wider surface area, updated clutch plates and a stiffer outer pressure plate all combine to boost durability. The shift lever and shift selector drum are also updated for 2018, to improve shift feel with a shorter, more direct stroke when changing gears.

Wraparound Rear-Positioned Exhaust: The innovative exhaust pipe design improves mass centralization and improves power development, with revised geometry for 2018. This layout moves the rear end of the exhaust pipe farther forward and enables a muffler position close to the center of the mass.

Chassis/Suspension Features

New Aluminum Frame: The 2018 YZ450F compact frame is completely new to further refine the instinctive handling that makes this Yamaha one of the best handling machines in the class. Larger upper frame bracing improves rigidity and durability, while wider rear frame spars and all-new engine mounts centralize mass for the best possible balance of bump absorption, stiffness and feeling of grip.

New Compact Body and Seat Design: The new YZ450F features new bodywork from tip to tail, including a new compact fuel tank specifically designed for motocross demands. In addition to shaving weight, the new body design is narrow for more comfortable knee grip and feeling of control, and the seat is updated to give the rider additional room to move aboard the machine.

Wet weight includes the vehicle with all standard equipment and all fluids, including oil, coolant (as applicable) and a full tank of fuel. It does not include the weight of options or accessories. Wet weight is useful in making real-world comparisons with other models.
The riders depicted on this website are professionals, and all of the action was shot on a closed course. At Yamaha, we want every ride to be safe and enjoyable. Always dress properly for your ride with a helmet, eye protection and protective clothing. Avoid excessive speeds and never engage in stunt riding. Never ride under the influence of alcohol or other drugs; it is illegal and dangerous. Always inspect your Yamaha before riding. Read the Owner's Manual and the product warning labels before operation. Yamaha and the Motorcycle Safety Foundation encourage you to ride safely and respect the environment. For safety and training information, see your dealer or call the MSF at 800.446.9227.

General

Promotions

Thereafter, your standard APR will be 15.99%-23.99%.Offer available on approved purchases of new 2015-2018 Yamaha Motorcycles, Scooters, ATVs & Side-by-Sides made on the Yamaha Credit Card issued by WebBank, member FDIC. Subject to credit approval as determined by WebBank. Offer valid through 2/28/18. Available to cardholders of the WebBank Yamaha Card. Account must be open and current to be eligible for this offer. Eligible purchases will be charged no interest for 6 months from the transaction date. Thereafter, you will be charged your standard APR 15.99%-23.99%. Minimum Interest Charge $2 per month.

Thereafter, your standard APR will be 15.99%-23.99%.Offer available on approved purchases of new 2015-2018 Yamaha Motorcycles & Scooters made on the Yamaha Credit Card issued by WebBank, member FDIC. Subject to credit approval as determined by WebBank. Offer valid through 2/28/18. Available to cardholders of the WebBank Yamaha Card. Account must be open and current to be eligible for this offer. Promotional 2.99%, 4.99%, 8.99% or 13.99% APR with Minimum Payments of 1.26%, 1.43%, 1.83% or 2.18% respectively of the purchase price balance, based on your creditworthiness, are effective for 24 months from the transaction date. Thereafter, you will be charged your standard APR 15.99%-23.99%. Minimum Interest Charge $2 per month.

Monthly payments required. Valid on amounts financed of $7,000 or more on purchases of new 2015-2018 Motorcycles & Scooters made between 12/28/17 and 2/28/18 on your Yamaha Installment loan account.Rate of 3.99%, 7.99%, 10.99%, 14.99% or 15.99% will be assigned. Examples of monthly payments over a 36-month term at a 3.99% rate: $29.52 per $1000 financed; and at a 15.99% rate: $35.15 per $1000 financed. Program minimum amount financed is $2,500 and minimum 0%-10% down payment required. Rate and down payment based on credit approval criteria. Offer is subject to credit approval by Synchrony Bank.